Patent US642681A successfully refreshed from Google Patents.
US642681A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic can-heading machine.
Assignee: JOHN LEE JR
•
Filing: 1898-12-10
•
Granted: 1900-02-06
•
Expires: 1918-12-10
Abstract
No abstract record available.
Inventors
- 👤 Warren F Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:06
CPC Classifications
B; B21; B21D; B21D51/00; B21D51/16; B21D51/26; B21D51/30; B21D51/32
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1903-02-06 | 1903-08-08 | 1904-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1907-02-06 | 1907-08-08 | 1908-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1911-02-06 | 1911-08-08 | 1912-02-07 | $7700.00 | Window Closed / Lapsed |